American Journal of Nanosciences

| Peer-Reviewed |

Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma

Received: 24 October 2019    Accepted: 18 November 2019    Published: 26 November 2019
Views:       Downloads:

Share This Article

Abstract

LaMnO3 is one of the most intensively studied cathode materials for solid oxide fuel cell (SOFC). In the present study, LaMnO3-d, cathode materials were synthesized by combustion method. The properties of synthesized materials like thermal, structural, electrical and electrochemical were investigated. Thermogravimetric analysis (TGA/DTA) analysis confirms that the calcination temperature (1000°C) is the appropriate temperature for the preparation of the materials using La (NO3)3.6H2O, MnSO4.H2O, Co (NO3)2.6H2O, Fe (NO3) 3.9H2O and C6H8O7.H2O precursors. The X-ray powder diffraction (XRD) results of the materials reveal the formation of the hexagonal structure with R3C space group Fd3m.The scanning electron microscope (SEM) characterization shows that the prepared samples have slightly porous structure with agglomerated particles. The energy dispersive spectroscopy (EDS) analysis is also confirms the presence of La, Mn and O elements in all synthesized materials. From the fourier transform infrared spectroscopy (FTIR) analysis, the most significant absorption bands located at 1629.8cm1 and 589.9cm1 wave numbers are identified. The room temperature conductivity of the sample is found to be 6.3×10-3 for LaMnO3 cathode material. From the dielectric constant ε′ as a function of frequency observed that value of ε′ maximum at lower frequencies and it begins to drop and becomes constant at higher frequencies.

DOI 10.11648/j.ajn.20190504.14
Published in American Journal of Nanosciences (Volume 5, Issue 4, December 2019)
Page(s) 48-55
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Perovskites, SOFC, Cathode Materials

References
[1] Armaroli, N., & Balzani, V. (2007). The future of energy supply: challenges and opportunities. Angewandte Chemie International Edition, 46 (1-2), 52-66.
[2] Trimm, D. L. (2005). Minimisation of carbon monoxide in a hydrogen stream for fuel cell application. Applied Catalysis A: General, 296 (1), 1-11.
[3] Park, J. H., Kim, S., & Bard, A. J. (2006). Novel carbon doped TiO2 nano tube arrays with high aspect ratios for efficient solar water splitting. Nano letters, 6 (1), 24-28.
[4] Tarragó, D. P., Moreno, B., Chinarro, E., & deSousa, V. C. (2016). Perovskites used in fuel cells. In Perovskite Materials-Synthesis, Characterisation, Properties, and Applications. In Tech.
[5] Levy, M. R. (2005). Tesis Doctoral Departamento de Materiales (Universidad deLandres).
[6] Hernández, E., Sagredo, V., & Delgado, G. E. (2015). Synthesis and magnetic characterization of LaMnO3 nanoparticles. Revistamexican a defísica, 61 (3), 166-169.
[7] Varshney, D., & Kaurav, N. (2004). Analysis of low temperature specific heat in the ferromagnetic state of the Ca-doped manganites. The European Physical Journal B-Condensed Matter and Complex Systems, 37 (3), 301-309.
[8] Batdemberel, G., Bulgan, G., Dinnebier, R. E., Munkhbaatar, P., Sangaa, D., & Chadraabal, S. (2010, October). Rietveldrefinement of nano structural LaMnO3+δ perovskite-type manganite. In Strategic Technology (IFOST), 2010 International Forumon (pp.256-258). IEEE.
[9] Jnr, M. H., & Spiff, A. I. (2005). Equilibriumsorption study of Al3+, Co2+ and Ag+ in aqueous solutions by fluted pumpkin (Telfairiaoccidental is HOOKf) was tebiomass. Acta Chim. Slov, 52, 174-181.
[10] Gaudry, E., Kiratisin, A., Sainctavit, P., Brouder, C., Mauri, F., Ramos, A.,... & Goulon, J. (2005). X-ray (natural linear dichroism XNLD) applied to the determination of relaxations around transition metal impurities in α-Al2O3. Physica Scripta, 2005 (T115), 1041.
[11] Yogamalar, R., Srinivasan, R., Vinu, A., Ariga, K., & Bose, A. C. (2009). X-ray peak broadening analysis in ZnO nano particles. Solid State Communications, 149 (43-44), 1919-1923.
[12] Erdenee, N., Enkhnaran, U., Galsan, S., & Pagvajav, A. (2017). Lanthanum-Based Perovskite-Type Oxides La1−xCexBO3 (B=Mn and Co) as Catalysts: Synthesis and Characterization. Journal of Nano materials, 2017.
[13] Macdonald, J. R., & Barsoukov, E. (2005). Impedance spectroscopy: theory, experiment, and applications. History, 1 (8).
[14] Hussain, A. M., Pan, K. J., Robinson, I. A., Hays, T., & Wachsman, E. D. (2016). Stannate-based ceramic oxide as anode materials for oxide-ion conducting low-temperature solid oxide fuel cells. Journal of The Electrochemical Society, 163 (10), F1198-F1205.
Author Information
  • Physics, Arba Minch University, ArbaMinch, Ethiopia

Cite This Article
  • APA Style

    Kassahun Lewetegn Damena. (2019). Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma. American Journal of Nanosciences, 5(4), 48-55. https://doi.org/10.11648/j.ajn.20190504.14

    Copy | Download

    ACS Style

    Kassahun Lewetegn Damena. Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma. Am. J. Nanosci. 2019, 5(4), 48-55. doi: 10.11648/j.ajn.20190504.14

    Copy | Download

    AMA Style

    Kassahun Lewetegn Damena. Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma. Am J Nanosci. 2019;5(4):48-55. doi: 10.11648/j.ajn.20190504.14

    Copy | Download

  • @article{10.11648/j.ajn.20190504.14,
      author = {Kassahun Lewetegn Damena},
      title = {Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma},
      journal = {American Journal of Nanosciences},
      volume = {5},
      number = {4},
      pages = {48-55},
      doi = {10.11648/j.ajn.20190504.14},
      url = {https://doi.org/10.11648/j.ajn.20190504.14},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajn.20190504.14},
      abstract = {LaMnO3 is one of the most intensively studied cathode materials for solid oxide fuel cell (SOFC). In the present study, LaMnO3-d, cathode materials were synthesized by combustion method. The properties of synthesized materials like thermal, structural, electrical and electrochemical were investigated. Thermogravimetric analysis (TGA/DTA) analysis confirms that the calcination temperature (1000°C) is the appropriate temperature for the preparation of the materials using La (NO3)3.6H2O, MnSO4.H2O, Co (NO3)2.6H2O, Fe (NO3) 3.9H2O and C6H8O7.H2O precursors. The X-ray powder diffraction (XRD) results of the materials reveal the formation of the hexagonal structure with R3C space group Fd3m.The scanning electron microscope (SEM) characterization shows that the prepared samples have slightly porous structure with agglomerated particles. The energy dispersive spectroscopy (EDS) analysis is also confirms the presence of La, Mn and O elements in all synthesized materials. From the fourier transform infrared spectroscopy (FTIR) analysis, the most significant absorption bands located at 1629.8cm1 and 589.9cm1 wave numbers are identified. The room temperature conductivity of the sample is found to be 6.3×10-3 for LaMnO3 cathode material. From the dielectric constant ε′ as a function of frequency observed that value of ε′ maximum at lower frequencies and it begins to drop and becomes constant at higher frequencies.},
     year = {2019}
    }
    

    Copy | Download

  • TY  - JOUR
    T1  - Investigation of Thermal, Structural and Electrical Properties of LaMnO3-Sigma
    AU  - Kassahun Lewetegn Damena
    Y1  - 2019/11/26
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ajn.20190504.14
    DO  - 10.11648/j.ajn.20190504.14
    T2  - American Journal of Nanosciences
    JF  - American Journal of Nanosciences
    JO  - American Journal of Nanosciences
    SP  - 48
    EP  - 55
    PB  - Science Publishing Group
    SN  - 2575-4858
    UR  - https://doi.org/10.11648/j.ajn.20190504.14
    AB  - LaMnO3 is one of the most intensively studied cathode materials for solid oxide fuel cell (SOFC). In the present study, LaMnO3-d, cathode materials were synthesized by combustion method. The properties of synthesized materials like thermal, structural, electrical and electrochemical were investigated. Thermogravimetric analysis (TGA/DTA) analysis confirms that the calcination temperature (1000°C) is the appropriate temperature for the preparation of the materials using La (NO3)3.6H2O, MnSO4.H2O, Co (NO3)2.6H2O, Fe (NO3) 3.9H2O and C6H8O7.H2O precursors. The X-ray powder diffraction (XRD) results of the materials reveal the formation of the hexagonal structure with R3C space group Fd3m.The scanning electron microscope (SEM) characterization shows that the prepared samples have slightly porous structure with agglomerated particles. The energy dispersive spectroscopy (EDS) analysis is also confirms the presence of La, Mn and O elements in all synthesized materials. From the fourier transform infrared spectroscopy (FTIR) analysis, the most significant absorption bands located at 1629.8cm1 and 589.9cm1 wave numbers are identified. The room temperature conductivity of the sample is found to be 6.3×10-3 for LaMnO3 cathode material. From the dielectric constant ε′ as a function of frequency observed that value of ε′ maximum at lower frequencies and it begins to drop and becomes constant at higher frequencies.
    VL  - 5
    IS  - 4
    ER  - 

    Copy | Download

  • Sections